Flier for roving-machine, &amp;c.



PATENTED JULY 7, 1908. F. H. MARTIN.

PLIER FOR ROVING MACHINES, &o.

APPLICATION FILED JULY 15, 1907.

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UNTTED sTATns PATENT OFFICE.

FAY H. MARTIN, OF BOSTON, MASSACHUSETTS, ASSIGNORV TO TEXTILE MACHINERY COMPANY, OF BOSTON, MASSACHUSETTS, A CORPORATION OF MAINE.

FLIER FOR ROVING-MACHINES, &c.

` Zen of the United States, residing at Boston,

in the county of Suffolk, State of Massachusetts, have invented a certain new and useful Improvement in Fliers for Roving-Machines, &c., of which the following is a specification, reference being had therein to the accompanying drawings.

The invention has relation to fliers of roving frames and the like machines, and is designed as an improvement upon the invention which is described and claimed in United States Letters Patent No. 7 60,227, granted to me May 17, 1004.

In a flier of the class to which the present invention and that of the Lettersl Patent aforesaid relate, the presser-Enger extends in the direct-ion of the length of the spindle and is pivotally mounted so as to swingI in a plane which is radial to the spindle. However, instead of being pivoted upon the presser-carrying arm so that the center of the pivot constitutes the axis or center of the arcwhich is described by the pressershoe in its movements, the said presser-finger is mounted upon the said arm in such a manner that, as the load of roving which is being wound upon the bobbin increases in diameter and resses the shoe of the presseriinger outwarcffrom the spindle, the presserfinger, in addition to swinging outward in a radial direction, is caused to move bodily in the direction of its length. The result of causing this bodily movement of the presser in the direction of its length to constitute a component of the movement of the presser in the operation of the flier, is to cause the shoe of the presser to travel outward and inward in a substantially horizontal direction, and to stand at, or substantially at, the same height at the exterior of a wound mass of roving as when it occupies its innermost position in contact with the barrel of the bobbin. Thereby any noticeable irregularity in the positioning of the ends of the successive layers of roving which are wound upon the bobbin is obviated.

In my Letters Patent aforesaid the presserfinger is formed in the body-portion thereof with slightly curved arc-shaped slots that are described about a center which is at the side toward the spindle and bobbin. These slots are occupied by small tubular blocks or Specification of Letters Patent.

Application led July 15, 1907.

lsage within the arm.

Patented July '7, 1908.

Serial No. 383,836.

bushings, counterbored at their inner ends, and having such ends fitted upon the eXteriors of studs or nipples that project from and are Vintegral with the presser-carrying arm of the flier. The said studs or nipples are internally threaded to receive the screwthreaded inner end -portions of securingscrews which pass through the said blocks-or bushings and also through a cap-plate at the outer ends of the blocks or bushings, the said screws holding the cap-platefand blocks or bushings to the said carrying-arm. The presser-finger is confined between the capplate and the adjacent surface of the Carrying-arm of the flier, and in its movements slides up and downupon the said blocks or bushings. The hollow studs or nipples were designed to constitute supports for the blocks or bushings, by which to hold the' latter in position, and in addition were designed to afford proper support for the inner ends of the securing screws and enable a sufficient length of screw-thread to be provided for engagement with the said ends of the screws. The wall of the presser-carrying arm, it being hollow or tubular for the passage of the roving therethrough on its Way from the neck of the flier to the stem and eyes of the presser-finger, is too thin to ermit of being properly screw-threaded anc to afford proper seats for the screws.

In the Letters Patent aforesaid the pressercarrying arm is shown and described as having the threaded holes for the reception of the securing screws aforesaid continued through the entire thickness of the wall of the said arm and intersecting the roving-pas- T he purpose was to afford a longer seat l'or the inner end-portions of the securing screws. In practice, however, it was found that, in the movement of a roving through the roving-passage, fibers became caught and detached from the roving and held by the edges of the holes or by the inner ends of the screws, when these last eX- tended entirely to the guide-passage. This drawback led to making shorter holes eX- tending only as far as the inner Vends of the studs or nipples. This change in construction, however, resulted in another' disadvantage, namely, inasmuch as any transverse strain acting through the securing screws was then withstood only by the shells or walls of the hollow studs or bushings, and inasmuch as these of necessity were thin and weak, while the bushings and the headed ends of the screws projected to a considerable extent beyond the studs or nipples, breakage of the studs or nipples occurred, incapacitating the flier.

The first feature of my invention consists, therefore, in an improved construction ,of flier-arm and bushings by means of which the blocks or bushings and their securing screws are more effectively applied and supported in place, and whereby the tendency to breakage, and other disadvantages, of the patented construction aforesaid are obviated.

It happens sometimes in the working of a roving frame or other like machine, from one cause or another, that an arm of one flier will touch or strike an arm of an` adjoining iiier. l have observed this tendency more particularly in the case of frames which have been in use for some time and in which the spindlebearings have gotten more or less out of true. The second feature of my invention consists in a shield or guard for protecting the presser of a flier from being struck and broken, bent or otherwise injured by an arm of an adjoining iier.

The invention is illustrated in the accompanying drawings, in which latter,-

Figure 1 shows in elevation a spindle, bobbin, and iiier, having my invention applied in connection with the said flier. Fig. 2 is a View looking from the left-hand side in Fig. 1. Fig. 3 is an elevation of the presser-carrying arm, shown separately, with the presser removed. Fig. 4 is a detail view in section on line 4, 4, of Fig. 1, onV an enlarged scale. Fig. 5 is a detail view on line 5, 5, of Fig. 3, also on an enlarged scale. Fig. 6 is a detail view showing the weight-arm 41 of the presser-finger in section in a horizontal plane.

Having reference to the drawings,-l, Figs. 1 and 2, designates the spindle of a ioving-frame, the upper portion thereof being indicated by dotted lines in Fig. 1. At 1', Figs. 1 and 2, is a portion of the spindle-bearing.

2 is a bobbin surrounding the said spindle. A load of roving upon the said bobbin is indicated by dotted lines in l.

3 is a Hier which is applied to the upper end of the spindle. The boss or nose of the fiier is designated 31 in Figs. 1 and 2. The balancing arm of the ier is designated 32, and the arm to which the presser-finger is connected is designated 33. The guide-passage 34 for roving extending lengthwise within the said arm 33 is indicated by dotted lines in Fig.v 1, and is represented in cross-section in Figs. 4 and 5.

4 is the presser-finger, 41 being its weightarm, 42 the presser-shoe, and 43, 43, being the eyes of the said presser-shoe through.

which the roving is led on its way to the bobbin.

At 44, 44, are the two curved or arc-shaped slots which are formed through the body-portion of the presser-finger, as in the Letters Patent aforesaid.

At 5, Fig. 4, is shown one of the blocks or bushings which are mounted upon the arm 33 and received within the slots 44, 44. At 7, v7, are the screws by means of which the said blocks or bushings and the presser-finger are confined in place.

At 6, 6, are washers upon the stems of the screws 7, 7, the said washers intervening between the heads of the said screws and the outer ends of the blocks or bushings 5 and outer side of the body of the presser-finger The washers 6, 6, take in the present instance the place of the cap-plate of the Letters Patent aforesaid.

In carrying my present invention' into effect, l make the flier-arm with one or more enlargements a, a, and in the latter, in positions which are offset with relation to the roving-passage 34, I tap the screw-threaded holes b, b, (see, more particularly, the sectional view, Fig. 4) to receive the screw-threaded portions of the screws 7, 7. This location of the said holes permits me to form the latter in material of ample thickness, greatly eX- ceeding the thickness of the wall of the roving-passage. The said enlargements are shown projecting in the form of substantially cylindrical bosses. l thereby am enabled to provide seats which receive sufficient lengths of the stems of the screws to properly hold and support the latter, and am enabled also to form sufficient length of thread to hold the screws securely. The thickness at the enlargements may vary as found desirable in practice. The screw-holes b, b, are entirely outside the roving-passage, as will be clear from Figs. 4 and 5, and consequently the wall of the latter is left smooth and unbroken throughout the length of the passage. The threaded hole b may extend completely through the thickness of the material in which it is formed, as in Figs. 4 and 5, although in some instances the said hole may be closed at one end thereof. Studs or nipples such as those of the Letters Patent aforesaid may bevformed upon the enlargement or enlargements, and the blocks or bushings may be fitted thereto as in the patent, o'r l may employ the improved construction shown best in Fig. 4 of the accompanying drawings, in which latter the enlargement is shown counterbored around the upper end of the hole l), and the block or bushing 5 is shown as having its lower end received within the counterbore. Thereby the block or bushing is given lateral support by the material of the arm 33, and the stem of the screw 7 is relieved from the action of lateral strain tend- I ing to bend the same. Preferably, although not necessarily in all cases, the inner end of the block or bushing is reduced in diameter,

the counterbore being of corresponding size to fit the same, and the said reduced portion is surrounded by a small bearing-plate 3,

lwhich rests against the outer face of the enlargement, and with which the shoulder of the block or bushing 5, and the inner face of the body-portion of the presser-finger, make contact. The two bearing plates 8, 8, (which might be replaced by a single plate or strip) take the wear that is incident to the movement of the presser-finger.

,The ortions of a flier which, in the rotation of the atter, are most likely to strike against portions of an adjoining flier are those which extend farthest from the axis of rotation of the flier andits spindle. In the resent instance the arms 32 and 33 inc ine downwardly and outwardly, so that generally speaking the lower endsof such arms, and the body-portion. of the presser-finger in connection with arm 33, are the portions which are most likely to be struck. In beginning to wind upon an empty bobbin the presserfinger will occu y a position in which the resser-shoe 42 1s close to the barrel of the bobbin and the weight-arm 41 extends outward somewhat. Under theseA conditions the weight-arm 41 of one flier may accidentally make contact with the weight-arm of one of the fliers next adjoining. However', in virtue of the fact that the weight-arms are lenticular in cross-section this contact will occasion no injury because the rounded outer surfaces of two weight-arms 41 striking together will merely gfance against each other without breaking or bending anything. A blow delivered upon the counterbalancing arm 32 is not likely to occasion injury, but a blow against the body-portion of the presser-finger might damage the latter or the devices by Which it is supported and guided upon the arm 33. For the protection of the said body-portion I provide the said arm with a wing 9, shown best in Fig. 3, which precedes the presser -finger in the turning movement of the flier, and projects alongside and beyond the body-portion ofI the presser-finger so as to receive any blows which might otherwise reach the said body-portion, anc thereby ward them from the latter.

Heretofore, in the case of fliers of the class to which the invention relates, the flier-body with its arms integral therewith has been produced-as a casting, and the body-portion of the presser-finger has been fitted against a surface or surfaces of the presser-carrying arm, such surface having been prepared and smoothed 0H by machining the same. The condition of the surface or surfaces is likely to vary in the case of different fliers. For instance, when the tool that is employed for smoothing off the said surface or surfaces becomes dull it leaves the latter more or less rough. So also, the size of the portion or portions of the flier-arm on which the surface or surfaces aforesaid is formed often varies more or less in consequence of differences in effecting the molding and casting, and as a result the diameter or length of the surface or surfaces may vary in different cases, producing thereby variations in amount of friction, etc., and in the results. The employment of prepared bearing-plates S, S, enables me to secure uniformity in the character of the surface or surfaces against which the body-portion of the presserfinger is held and upon which it slides, and uniformity in the working conditions and results. of preparing the said surface or surfaces, since they do not require to be finished off so perfectly as heretofore.

I claim my invention 1. In a flier, in combination, the flier-arm having the longitudinal passage, enlarged laterally with relation to the said passage, and having the screw-threaded holes tapped therein in positions that are offset with relation to the passage, the swinging and longitudinally inovableslotted presser-finger, and the holding screws for the said presser-finger, occupying the said offset screw-threaded holes.

2. In a flier, in combination, the flier-arm havingl the longitudinal passage, enlarged laterally with relation to such passage, having the screw-tlireaded holes tapped therein in positions that are offset with relation to the passage, and counterbored around the said holes, the blocks or bushings having their inner ends occupying the eounterbores, the swinging and longitudinally movable slotted presser-finger, and the holding screws for the said presser-finger, passing through the said blocks or bushings and occupying the said offset screw-holes.

3. In a flier, in combination, the [lier-arm having the longitudinal passage, enlarged laterally with relation to such passage, having the serew-threaded holes tapped therein in positions that are offset with relation to the passage, and counterbored around the said holes, the shouldered blocks or bushings having the reduced inner ends occu ying the counter-bores, the swinging and lf nally movable slotted presser-finger, and the holding screws for the said presser-finger, passing through the said blocks or bushings and occupying the said offset screw-holes.

4. In a flier, in combination, the presserfinger, mounted upon an arm of the said flier and movable thereon longitudinally and also in a radial plane, and the said flier-arm provided with a shield operatinrr to ward off blows from adjacent fliers from lthe said presser-finger.

5. In a flier, in combination, the presserfinger', mounted upon an arm of the said Hier and n'io'vable thereon longitudinally and also in a radial plane, and the said flier-arm provided with a wing projecting alongside the It also enables me to reduce the cost body-portion of the said presser-linger, and preceding the latter in the rotation of the iiier to ward off blows from adjacent iliers.

6. In a ilier, in combination, a flier-arm, a presser-finger movable upon the said flierarm longitudinally and also in a radial plane, means for mounting the said presser-linger upon the Hier-arm, and one or more prepared bearing-plates interposed between the proximate surfaces of presser-finger and Hier-arm.

7". In a Hier, in combination, the flier-arm having the screw threaded holes tapped therein and counterbored around the said holesJ the slotted presser-inger, one or more prepared bearing-plates interposed between FAY H. MARTIN.'

Vitnesses.

CHARLES F. RANDALL, EDITH J. ANDERSON. 

